SXUS73 KFSD 052238 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 537 PM CDT SAT AUG 5 2017 ...RECORD DAILY LOW MAXIMUM TEMPERATURE SET AT SIOUX FALLS SD... A RECORD DAILY LOW MAXIMUM TEMPERATURE WAS SET AT JOE FOSS FIELD IN SIOUX FALLS SOUTH DAKOTA TODAY. THE AFTERNOON HIGH TEMPERATURE ONLY CLIMBED TO 71 DEGREES...AND REMAINED THERE THROUGH 306 PM CDT. THIS BROKE THE PREVIOUS RECORD COOL MAXIMUM OF 72 DEGREES...ORIGINALLY SET IN 1928...AND THEN TIED IN 1992. $$ TRM